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Question
A rectangular plot is given for constructing a house, having a measurement of 40 m long and 15 m in the front. According to the laws, a minimum of 3 m, wide space should be left in the front and back each and 2 m wide space on each of other sides. Find the largest area where house can be constructed.
Solution
Let ABCD is a rectangular plot having a measurement of 40 m long and 15 m front.
∴ Length of inner-rectangle, EF = 40 – 3 – 3 = 34 m
And breadth of inner-rectangle, FG = 15 – 2 – 2 = 11 m
∴ Another rectangle EFGH will be formed inside the rectangle ABCD
∴ Area of inner-rectangle, EFGH = Length × Breadth
= EF × FG ...[∴ Area of a rectangle = length × breadth]
= 34 × 11
= 374 m2
Hence, the largest area where the house can be constructed in 374 m2.
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